Wi-Fi is not an acronym. But it can be defined as the abbreviation of wireless connection. In reality, it is the brand name created by a marketing firm. Briefly, Wi-Fi is the wireless technology used to connect computers, tablets, smartphones, and IoT devices to the internet.
In a Wi-Fi connection, internet connectivity occurs through a wireless router. When the user accesses Wi-Fi, he can connect to a wireless router, which allows the Wi-Fi-compatible devices to interface with the internet.
Technically, the IEEE 802.11 standard defines the protocols that enable communications with current Wi-Fi-enabled wireless devices. It includes wireless routers and wireless access points. Wireless access points support different IEEE standards.